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E. B. KEITH.

GRAIN CARRIER.

Patented Apr. 8, 1890.

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UNITED STnTes FATnNT rtree.

E'IIIAN B. KEITH, OF GALESBURG, MICHIGAN, ASSIGNOR OF ONE-HALF TO CHARLES D. TOIVNE, OF SAME lPLACE.

GRAIN-CARRIER.

SPECIFICATION forming part of Letters Patent No. 425,229, dated-April 8, 1890.

Application filed December 26, 1889. Serial No. 334,937. (No model.)

.To @ZZ whom it may concern.-

Be it known that I, ETHAN B. KEITH, a citizen of the United States, residing at Galesburg, county 'of Kalamazoo, State of Michigan, have invented a new and useful Grain- Oarrier, of which the following is a specifica* l tion.

This invention relates to that class of graincarriers in which forked bars or rakes are carried by sprocket-chains; and it has for its object the changes in construction, substantially as below described and claimed.

In the drawings, forming apart of this specification, Figure l is a plan View. Fig. .2iis a sectional elevation on line 3 3 in Fig. l. Fig. 3 is a plan, showing enlarged lettered details from Fig. l. Fig. #l is a section on line l lin Fig. 3, looking from a point at the left; and Fig. 5 is a sectional elevation on line 2 2 in Fig. 3. f

Referring to the lettered parts of the drawings, A is the upper tloor of the grain-conveyer. v

At M is showna lower floor, and there is a space between these iioors for the purpose below explained.

Referring to Fig. 2, C is a sprocket-chain, carried by sprocket-wheels L and H at each end of the conveyer. If all portions of the grain-conveyer were on a horizontal plane (and I designed that these carriers may be used on such conveyers) no other sprocketwheels would be needed; butin the construction here shown, in which a portion of the grain-Conveyer is at an upward incline, (the right-hand end in Figs. l and 2,) it is necessary to provide the conveyer at the juncture of the horizontal and incline parts of the conveyer with sprocket-wheels N and E. These sprocket-wheels N and E are in the bend of the respective floors Aof the grain-conveyer, and the sprocket-chain runs beneath them to make the chain traverse the peculiar surface of the floors. Fewer may be applied to the shaft F, Figs. l and 2, or it maybe applied to the shaft of one of the end sprocket-wheels.

One of said sprocket-chains is carried by a set of said sprocket-wheels at each side of the grain-platform, Fig. l.

At l5 I3 are -a series of rakes transversely across the table and pivotally attached at the ends to the chains O by means of hingingeyes D, with which the ends of the rakes are provid ed, said eyes being loosely inserted in projections b, which projections are attached to links of the chain at proper intervals and extend laterally therefrom, as shown in Fig. 3. These rakes are provided with teeth formed of rods e, which extend forward from the rake-heads and turn upward at the front and rear ends, as attl i', Figs. 2, 4, and 5. These teeth may be attached'to the rake-heads in any suitable manner.V As here shown, the rake- -heads are composed of two bars n and o, one

upon another and bolted together. The engaging-faces of these bars have registeringgrooves, which contain the attachment end fi of the teeth7 and said ends of the teeth are bent upward through a hole, which communicat-es with the grooves in said bars, and when the bars are clamped together by bolts the teeth are prevented from tilting over and from pulling out of the rake-heads, all as clearly shown in Figs. 3, 4L, and 5. In thelatter figure the end t" is broken ott. The lower end of the grain-conveyer has a foot-board provided with a series of slots, up through which the rake-teeth pass beneath the grain, which falls on said foot-board, and which grain said teeth carry along over the upper floor ofthe grain-conveyer. y

The upper end of the graiu-conveyer has a series ot slots S, down through which the teeth pass during the travel of the sprocket-chains around the sprocket-wheels, and during this movement of the rakes said rakes slide over the floors of the grain-conveyer and are prevented from tilting out of their proper position from the fact that the outer ends of the teeth have a sliding contact with said floors. The ends of the rake-heads are provided with upward projections A, which pass under rollers I, attached to the side walls of the grainconveyer at the end Where the rake-heads pass through the slots S of the upper iioor, Figs. l, 2, 4, and 5. The object ot' this is to prevent the rake-teeth from unduly tipping down-Y ward, and in order that said teeth willbe carried downward from the slots S in about the same position that they occupy when carrying the grain, in order to be readily freed from the grain.

IOO

In some constructions the projections A and the rollers I will not be needed.

IfIaving thus described myinventlon, whatI claim as new, and desire to secure by Letters Patent of the United States, is-

l. In a grain carrier or elevator' employing sprocket-chains for carrying the rakes, rakes consisting of the head having the ends pivf oted to said chains, and theteet-h made of the long rods bent upward at each end, one of said ends being attached to the head and extending at right angles above said head so as to form a tooth at each end of said long rods, substantially as set forth.

2. In a grain carrier or elevator, the rakes composed of the heads made from the two bars bolted together, and the teeth `formed from the rods bent upward at each end, one end of said teeth being in grooves between the bars and passed up through holes in the upper bar, substantially as set forth.

3. rlhe combination of the platform having the upper and lower floors, the upper floor haring the series of slots at each end, the sprocket chains and sprocketwheels, the rakes consisting of the heads and the teeth turned up at each end, said heads having an upwardly-extending projection or bracket at the end, and a roller pivoted to the platform at the end where the rakes are carried through the slots of the upper licor, whereby the engagement of said bracket with the roller prevents the rake-teeth from tilting downward, substantially as set forth.

In testimony of the foregoing I have hereunto subscribed my name in presence of two witnesses.

ETHAN IE. KEI'lIl.

Witnesses:

lBELLE FREEMAN, WALTER ENcLIsn'. 

